The binding sites of Manganese atom in the structure of Crystal Structure of I-Substituted Photosystem II Complex (pdb code 3a0h). This binding sites where shown with 5.0 Angstroms radius around Manganese atom. The 3a0h structure was solved by K.KAWAKAMI, Y.UMENA, N.KAMIYA, J.-R.SHEN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: